Angelica and Angelina Sabuco, the twins who used to have a what is called a "thoraco-omphalopagus" connection, wherein their livers, diaphragms, breast bones, chest and abdominal muscles are combined, has a very successful 10-hour surgery separating them at the Stanford's Lucile Packard Children's Hospital on Tuesday afternoon.

According to lead surgeon Dr. Gary Hartman, the surgery "could not have gone better."

Cutting the liver was the toughest part of the surgery, as it carried the risk of incurring a lot of blood loss, but even that was survived by the twins.

"My long term prognosis is that there will be no barriers to complete recovery," Hartmann said.

The surgery involved about 20 doctors and over 15 operating room staff. Hartmann, the head of the surgical team, has extensive experience in this type of surgery, having done it six times.

A long straight scar from the neck to the belly button will be the only reminder of what the 2-year-old twins have been through, but for their mother, Ginady Sabuco, that is more than enough indication of the miracle she would live with for the rest of her life.

The twins are expected to stay in the pediatric intensive care unit for about a week, and in a regular room at the hospital for about another week after that.

The occurrence of conjoined twins is estimated to range from 1 in 50,000 births to 1 in 100,000 births worldwide. The overall survival rate of conjoined twins is approximately 25%, and most do not survive pregnancy.- Source